SMC Chemical Liquid Valve: 1/4 in, Air to Air, Fail Open, Polyphenylene Sulfide
The SMC Chemical Liquid Valve (MPN LVA21-02N-B) is a high-purity pneumatically-actuated diaphragm valve with a 1/4 in NPT connection and a polyphenylene sulfide body. It features air-to-air actuator operation and a…
SKU 3G-OTH-449913
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Product Description
The SMC Chemical Liquid Valve (MPN LVA21-02N-B) is a high-purity pneumatically-actuated diaphragm valve with a 1/4 in NPT connection and a polyphenylene sulfide body. It features air-to-air actuator operation and a fail-open fail-safe position, ensuring the valve opens upon loss of actuation pressure.
Frequently Asked Questions
What is the SMC LVA21-02N-B chemical liquid valve used for?
The SMC LVA21-02N-B is a high-purity pneumatically-actuated diaphragm valve designed for controlling chemical liquids in semiconductor, pharmaceutical, and industrial processing applications. Its polyphenylene sulfide body and fail-open fail-safe position ensure safe operation when actuation pressure is lost.
What are the specifications of the SMC LVA21-02N-B valve?
The SMC LVA21-02N-B features a 1/4 in NPT connection, air-to-air actuator operation, and a fail-open fail-safe position. The valve body is made of polyphenylene sulfide. It is a high-purity pneumatically-actuated diaphragm valve from SMC, with manufacturer part number LVA21-02N-B.
Where to buy the SMC LVA21-02N-B valve worldwide?
3G Electric supplies the SMC LVA21-02N-B valve worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this SMC high-purity diaphragm valve.
How to install the SMC LVA21-02N-B chemical liquid valve?
Install the SMC LVA21-02N-B valve by connecting the 1/4 in NPT ports to your piping system using appropriate sealant. Ensure the air-to-air actuator receives clean, dry compressed air at the specified pressure. Verify the fail-open position by testing loss of actuation pressure before commissioning.
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3G Electric supplies SMC high-purity pneumatically-actuated diaphragm valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.














